Articles tagged with Prosthetic Limbs
Researchers have developed a new index to assess patients' progress with prosthetic arms, grading performance on 18 everyday tasks. The Activities Measure for Upper Limb Amputees (AM-ULA) considers movement quality and body compensation, providing clinicians with a reliable tool to evaluate treatment effectiveness.
Research funded by the Wellcome Trust suggests that prosthetic lower limbs and robots' legs could be made more efficient by making them less human-like. The study found that people walking normally, women in high heels, and ostriches produce similar forces on the ground due to their unique gait patterns.
Researchers at Vanderbilt University have developed a groundbreaking lower-limb prosthetic that enables amputees to walk with a natural gait, thanks to its powered knee and ankle joints. The device has been shown to reduce energy consumption by 30% and enable users to walk 25% faster on level surfaces.
A team of engineers from four US universities aims to create a prosthetic arm that can be controlled by brain signals, allowing amputees to perceive tactile sensations. The project combines noninvasive neural decoding, direct brain control, and sensory feedback to improve the user experience.
A team of scientists at Karolinska Institutet has successfully created an illusion of having three arms by using a realistic prosthetic arm. Healthy volunteers were tested and found to experience a third arm as part of their body image, even when it was threatened with harm.
A new $5.6 million initiative aims to create a system that controls prosthetic limbs naturally by sensing and stimulating nerve activity. The Vanderbilt team, in collaboration with SMU researchers, is developing a neurophotonics-based system that uses laser beams to stimulate sensory nerves and provide feedback to the brain.
A Tel Aviv University researcher has developed a tool to measure tissue damage in the bed-ridden and paralyzed, aiming to alleviate discomfort and pain. The Soft Tissue Stress Monitor can detect when a load is too heavy, alerting caregivers to make adjustments to prevent permanent damage.
Human performance experts Peter Weyand and Matthew Bundle conclude that Oscar Pistorius' artificial lower limbs provide a significant competitive advantage in sprint running. The blades allow him to reposition his limbs 15% more rapidly, reducing muscle forces required for sprinting by less than half.
A new study published in Biology Letters found that amputees who use running-specific prosthetic legs have no performance advantage over counterparts with biological legs. The researchers measured forces exerted on the ground and leg swing times, finding a 9% impairment in force production.
The Center for Restorative and Regenerative Medicine at Brown University has secured a new $7-million funding round from the VA to continue its work on restoring arm and leg function to amputees. Researchers will focus on developing biohybrid limbs, improving prosthetics, and rehabilitating veterans with limb trauma.
Researchers at UC Berkeley discovered that the brain can develop a mental map of a solution to achieve motor tasks with high proficiency, similar to how drivers stick to a given route. The study showed that the brain creates a stable neural pattern that adheres without deviation, enabling control of artificial limbs with intuitive ease.
A new study from the University of Utah shows that microelectrodes can detect brain signals controlling arm movements without penetrating the brain. This technology may enable amputees and paralyzed individuals to control prosthetic limbs and computers using their thoughts.
Scientists at Karolinska Institutet have successfully induced people with an amputated arm to experience a prosthetic rubber hand as belonging to their own body. This illusion was achieved by tricking the brain into thinking sensory input was coming from the prosthetic hand.
Researchers have developed a new neural-machine interface that enables prosthetic arms to respond directly to the brain's signals, allowing for greater control and movement. This technology has the potential to provide an even greater number of arm and hand movements beyond the four already achieved.
A team of mechanical engineers at Vanderbilt University has developed a revolutionary prosthetic arm that can lift up to 25 pounds and perform three times faster than current commercial arms. The arm is powered by a miniature rocket motor, allowing for greater power and function without the need for batteries.
A team led by Johns Hopkins University Applied Physics Laboratory has developed a fully integrated prosthetic arm that can be controlled naturally and provide sensory feedback, with eight degrees of freedom. The prototype, Proto 1, was fitted for clinical evaluations and demonstrated substantial improvements in functional testing.
Researchers developed targeted muscle reinnervation to improve control of a motorized prosthetic arm, allowing for better functional movement and sensory feedback. The technique enables the re-routed nerves to grow into muscles, giving users improved control and potentially 'feeling' sensations with an artificial hand.
The University of Utah is working on a bionic arm that can move naturally in response to thoughts and allow users to feel sensations, with the goal of restoring the capability of amputees. Researchers will develop a peripheral nerve interface device that relays signals from nerves to the artificial limb.
This article discusses various low back pain relief strategies, including prosthetic fit and production, for individuals with amputations. It also explores the impact of head and body movement on gait in patients with inner ear balance organ abnormalities.
New classification system improves elastomeric liner prescription, while telerehabilitation and pressure casting streamline wound management. Studies also explore shoe choice impact on residual limb damage and develop novel knee prosthesis for increased stability.
Researchers developed a neural prosthesis allowing a monkey to grasp and hold food using only its brain. The prosthetic arm is controlled by an algorithm that intercepts signals from the motor cortex, allowing the monkey to learn through biofeedback and refine its movements.
Researchers have created a simpler, cheaper way to make and fit prosthetics by using a gel instead of plaster. The new process has been tested on 10 leg amputees with no differences found in the success of the two types of sockets.
Researchers believe that bionic technologies can be adapted for restoring some degree of lost function, with progress continuing at its present pace. The development of wireless implants and miniaturized components will bring processing closer to the body, enabling more complex actions like walking.
A 'smart' prosthetic lower limb is being developed with a digital control system, enabling amputees to maintain active lives. The leg will simulate human gait and adjust to terrain, reducing pressure sores and improving comfort.
A $1.4 million project aims to create an advanced artificial knee prosthesis, drawing on expertise from US and Russian nuclear labs. The device will be designed to adapt to the wearer's movement and provide a more natural gait.
A US-funded project at Sandia National Laboratories has successfully diverted Russian nuclear weapons scientists to develop a new artificial foot for amputees. The foot features a rolling ball joint that mimics the natural movement of the human foot, reducing user discomfort and potential.